MySQL for the Internet of Things
ChApTEr 3 ■ how IoT DATA Is sTorED Listing 3-2. Log File Example Output (Raspberry Pi) $ python ./log_file_example.py 6,2015-10 ...
ChApTEr 3 ■ how IoT DATA Is sTorED The following sections discuss each option in greater detail. Later sections present small pr ...
ChApTEr 3 ■ how IoT DATA Is sTorED StOrING Date aND tIMe WIth SaMpLeS The Arduino does not have a real-time clock (rTC) on board ...
ChApTEr 3 ■ how IoT DATA Is sTorED // Begin writing rows to the file log_file = SD.open("log.txt", FILE_WRITE); if (log_file) { ...
ChApTEr 3 ■ how IoT DATA Is sTorED // close the file: log_file.close(); } else { // if the file didn't open, print an error: Ser ...
ChApTEr 3 ■ how IoT DATA Is sTorED 8, Example row: 9 9, Example row: 10 6, Example row: 7 7, Example row: 8 8, Example row: 9 9 ...
ChApTEr 3 ■ how IoT DATA Is sTorED What’S aN XBee? XBee is a brand name of Digi International for small, self-contained, modular ...
ChApTEr 3 ■ how IoT DATA Is sTorED The nature of the local storage is a limiting factor in what you can do with a local-storage ...
ChApTEr 3 ■ how IoT DATA Is sTorED Database servers provide a structured manner in which to store and retrieve data. Interaction ...
ChApTEr 3 ■ how IoT DATA Is sTorED Notice the criteria have been moved to the database server. That is, the code doesn’t need to ...
ChApTEr 3 ■ how IoT DATA Is sTorED After all, using a database server over a file-based or memory-based storage solution changes ...
ChApTEr 3 ■ how IoT DATA Is sTorED Maintenance of the data is another consideration, but perhaps less so than the others mention ...
ChApTEr 3 ■ how IoT DATA Is sTorED Furthermore, the data aggregator nodes are best placed where they can communicate to the data ...
ChApTEr 3 ■ how IoT DATA Is sTorED In addition to how to interpret the data, you should consider how the data flows through your ...
ChApTEr 3 ■ how IoT DATA Is sTorED I also include the communication mechanism. As you can see, two of the data collectors are ha ...
Chapter 4 Data Transformation Whether you have an existing IOT solution, you’re developing an idea for a new IOT solution, or yo ...
Chapter 4 ■ Data transformation ■Note some examples may not have database alternatives. in these cases, i mention considerations ...
Chapter 4 ■ Data transformation filter. That is, the filters are inside an enclosure that houses the pump, and thus the filters ...
Chapter 4 ■ Data transformation ■Tip Consider how often you want to record the observation based on what you may learn from chan ...
Chapter 4 ■ Data transformation What Level of Accuracy Do You Need? It may come as some surprise, but sensors are not always 100 ...
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